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參數(shù)資料
| 型號： | LTC1435ACG#PBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | High Efficiency Low Noise Synchronous Step-Down Switching Regulator |
| 中文描述： | 2 A SWITCHING CONTROLLER, 138 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | 0.209 INCH, PLASTIC, SSOP-16 |
| 文件頁數(shù)： | 14/20頁 |
| 文件大?。?/td> | 355K |
| 代理商： | LTC1435ACG#PBF |
3
LTC1435A
ELECTRICAL CHARACTERISTICS T
A = 25°C, VIN = 15V, VRUN/SS = 5V unless otherwise noted.
The q denotes specifications which apply over the full operating
temperature range.
LTC1435ACG/LTC1435ACS: 0
°C ≤ TA ≤ 70°C
LTC1435AIG/LTC1435AIS: – 40
°C ≤ TA ≤ 85°C
Note 1: TJ is calculated from the ambient temperature TA and power
dissipation PD according to the following formula:
LTC1435ACG/LTC1435AIG: TJ = TA + (PD)(130°C/W)
LTC1435ACS/LTC1435AIS: TJ = TA + (PD)(110°C/W)
Note 2: The LTC1435A is tested in a feedback loop which servos VOSENSE
to the balance point for the error amplifier (VITH = 1.19V).
Note 3: Dynamic supply current is higher due to the gate charge being
delivered at the switching frequency. See Applications Information.
Note 4: Oscillator frequency is tested by measuring the COSC charge and
discharge currents and applying the formula:
fOSC (kHz) =
+
–1
8.4(108)
COSC (pF) + 11
() 1
ICHG
()1
IDIS
Note 5: The minimum on-time test condition corresponds to an inductor
peak-to-peak ripple current
≥40% of IMAX (see Minimum On-Time
Considerations in the Applications Information section).
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Oscillator
fOSC
Oscillator Frequency
COSC = 100pF (Note 4)
112
125
138
kHz
TYPICAL PERFORMANCE CHARACTERISTICS
U
W
INPUT VOLTAGE (V)
0
70
EFFICIENCY
(%)
75
80
85
90
100
5
10
15
20
1435A G01
25
30
95
ILOAD = 1A
ILOAD = 100mA
VOUT = 3.3V
Efficiency vs Input Voltage
VOUT = 3.3V
VIN – VOUT Dropout Voltage
vs Load Current
LOAD CURRENT (A)
0
V
IN
–
V
OUT
(V)
0.2
0.1
0.3
0.4
0.5
1.0
1.5
2.0
1435A G04
2.5
3.0
RSENSE = 0.033
VOUT DROP OF 5%
LOAD CURRENT (A)
0.001
50
EFFICIENCY
(%)
55
65
70
75
100
85
0.01
0.1
1
1435A G03
60
90
95
80
10
CONTINUOUS
MODE
VIN = 10V
VOUT = 5V
RSENSE = 0.033
Burst Mode
OPERATION
Efficiency vs Load Current
VITH Pin Voltage vs Output Current
OUTPUT CURRENT (%)
0
V
ITH
(V)
1.0
2.0
3.0
0.5
1.5
2.5
20
40
60
80
1435A G06
100
10
030
50
70
90
Burst Mode
OPERATION
CONTINUOUS
MODE
INPUT VOLTAGE (V)
0
70
EFFICIENCY
(%)
75
80
85
90
100
5
10
15
20
1435A G02
25
30
95
ILOAD = 1A
ILOAD = 100mA
VOUT = 5V
Efficiency vs Input Voltage
VOUT = 5V
Load Regulation
LOAD CURRENT (A)
0
V
OUT
(%)
0
0.5
1.0
1.5
2.0
1435A G05
2.5
3.0
– 0.25
– 0.50
– 0.75
–1.00
–1.25
–1.50
RSENSE = 0.033
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LTC1435ACG#TRPBF | High Efficiency Low Noise Synchronous Step-Down Switching Regulator |
| LTC1435ACS#PBF | High Efficiency Low Noise Synchronous Step-Down Switching Regulator |
| LTC1435ACS#TRPBF | High Efficiency Low Noise Synchronous Step-Down Switching Regulator |
| LTC1435AIG#PBF | High Efficiency Low Noise Synchronous Step-Down Switching Regulator |
| LTC1435AIS#PBF | High Efficiency Low Noise Synchronous Step-Down Switching Regulator |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC1435ACS | 功能描述:IC REG CTRLR BUCK PWM CM 16-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:4,500 系列:PowerWise® PWM 型:控制器 輸出數(shù):1 頻率 - 最大:1MHz 占空比:95% 電源電壓:2.8 V ~ 5.5 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 125°C 封裝/外殼:6-WDFN 裸露焊盤 包裝:帶卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名稱:LM1771SSDX |
| LTC1435ACS#PBF | 功能描述:IC REG CTRLR BUCK PWM CM 16-SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 特色產(chǎn)品:LM3753/54 Scalable 2-Phase Synchronous Buck Controllers 標(biāo)準(zhǔn)包裝:1 系列:PowerWise® PWM 型:電壓模式 輸出數(shù):1 頻率 - 最大:1MHz 占空比:81% 電源電壓:4.5 V ~ 18 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-5°C ~ 125°C 封裝/外殼:32-WFQFN 裸露焊盤 包裝:Digi-Reel® 產(chǎn)品目錄頁面:1303 (CN2011-ZH PDF) 其它名稱:LM3754SQDKR |
| LTC1435ACS#TR | 功能描述:IC REG CTRLR BUCK PWM CM 16-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:4,500 系列:PowerWise® PWM 型:控制器 輸出數(shù):1 頻率 - 最大:1MHz 占空比:95% 電源電壓:2.8 V ~ 5.5 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 125°C 封裝/外殼:6-WDFN 裸露焊盤 包裝:帶卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名稱:LM1771SSDX |
| LTC1435ACS#TRPBF | 功能描述:IC REG CTRLR BUCK PWM CM 16-SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:4,500 系列:PowerWise® PWM 型:控制器 輸出數(shù):1 頻率 - 最大:1MHz 占空比:95% 電源電壓:2.8 V ~ 5.5 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 125°C 封裝/外殼:6-WDFN 裸露焊盤 包裝:帶卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名稱:LM1771SSDX |
| LTC1435ACSPBF | 制造商:Linear Technology 功能描述:Step down switching regulator,LTC1435CS |
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